monthly · placeholder
Atmospheric CO₂
424.5 ppm
+2.3 ppm YoY
Monthly mean. Displayed value is an illustrative placeholder until the connector lands.
Environmental Observatory · v2
TerraSight
Environmental signals, explained.
Live climate trends. An environmental data atlas. U.S. metro-level reports. Every dataset tagged with its trust level — so you know what the numbers actually mean.
Non-profit, source-first. NASA · NOAA · EPA · USGS · NSIDC. No composite scores — only transparent indicators.
Climate Trends
The three big-picture signals: carbon, temperature, ice. Placeholder values shown — connectors land in a later step.
monthly · placeholder
Global Temp Anomaly
+1.18 °C vs 1901–2000 mean
10 of last 10 years above +1.0°C
Anomaly vs 20th-century baseline. Placeholder value.
daily · placeholder
Arctic Sea Ice Extent
13.8 M km²
≈ 900k km² below 1981–2010 median
5-day trailing mean. Placeholder value.
Featured Local Reports
U.S. metro-level environmental dossiers — air, water, facilities, hazards. Built block-by-block from authoritative sources.
Go deeper
Four entry points into TerraSight — whether you want the whole globe, a catalog, or a metro ranking.
Earth Now · 6-layer MVP
Watch the planet in real time
Base imagery, SST, AOD, clouds, night lights, wildfires, earthquakes. One continuous field and one event overlay at a time — no overplotting.
Launch the globe
Environmental Data Atlas
8 categories — air, water, hydrology, coast/ocean, soil/land, waste, emissions, climate/hazards. Every dataset tagged with its trust level.
Open the atlas
Guides
Methodology notes. How we tag trust. Why composite scores are out. Read before you cite.
Read the guides
Metro Rankings
U.S. metros sorted by PM2.5, GHG emissions, water-quality violations, and declared disasters. Direction noted per metric.
See the rankings